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Initial UDT implementation for file transfer.

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New function RequestFileTransferUDT to download files from other peers.
This commit is contained in:
Kleissner
2021-10-24 04:26:30 +02:00
parent 6c2d526251
commit 75e3d9a42e
50 changed files with 4679 additions and 2 deletions
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19
Network.go
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@@ -186,7 +186,8 @@ func (nets *Networks) packetWorker() {
case protocol.CommandResponse: // Response
if response, _ := protocol.DecodeResponse(raw); response != nil {
// Validate sequence number which prevents unsolicited responses.
sequenceInfo, valid, rtt := nets.Sequences.ValidateSequence(raw.SenderPublicKey, raw.Sequence, response.Actions&(1<<protocol.ActionSequenceLast) > 0, true)
isLast := response.IsLast()
sequenceInfo, valid, rtt := nets.Sequences.ValidateSequence(raw.SenderPublicKey, raw.Sequence, isLast, !isLast)
if !valid {
//Filters.LogError("packetWorker", "message with invalid sequence %d command %d from %s\n", raw.Sequence, raw.Command, raw.connection.Address.String()) // Only log for debug purposes.
continue
@@ -257,6 +258,22 @@ func (nets *Networks) packetWorker() {
}
}
case protocol.CommandTransfer:
if msg, _ := protocol.DecodeTransfer(raw); msg != nil {
// Validate sequence number which prevents unsolicited responses.
isLast := msg.IsLast()
sequenceInfo, valid, rtt := nets.Sequences.ValidateSequenceBi(raw.SenderPublicKey, raw.Sequence, isLast)
if msg.Control != protocol.TransferControlRequestStart && !valid {
//Filters.LogError("packetWorker", "message with invalid sequence %d command %d from %s\n", raw.Sequence, raw.Command, raw.connection.Address.String()) // Only log for debug purposes.
continue
} else if rtt > 0 {
connection.RoundTripTime = rtt
}
raw.SequenceInfo = sequenceInfo
peer.cmdTransfer(msg, connection)
}
default: // Unknown command
Filters.MessageIn(peer, raw, nil)